Baad-File-Name

This is a simple crate that exposes a single function:

fn derive_file_name(file_name: &Path, 
                    output_folder: Some(&Path), 
                    new_extension: &Path) -> Option<PathBuf>;

It will take the file name file_name, and replace its folder part and extension part. If an output folder is not given (i.e. output_folder is None), the current directory is used instead.

Examples

Motivation

This is useful for writing tools that take an input file and outputs to one or many files whose file names are derived from the input file. For example, imagine a tool that takes a mardown file (with ".md" extension) and produces a HTML and CSS file with the same file name stem but with extensions ".html" and ".css".